GB/T 6150.2-2022 Methods for chemical analysis of tungsten concentrates—Part 2: Determination of tin content—Potassium iodate titrimetry and inductively coupled plasma atomic emission spectrometry (English Version)
This document specifies the methods for the determination of tin content in tungsten concentrates, including potassium iodate titration (method 1) and inductively coupled plasma atomic emission spectrometry (method 2). This document is applicable to the determination of tin content in tungsten concentrate, the determination range (mass fraction) of method 1: 1.00%~20.00%. The measurement range (mass fraction) of method 2: 0.010%~2.00%. For the overlapping part of the measurement range, method 2 shall be used as the arbitration method.
GB/T 6150.2-2022 Referenced Document
GB/T 6682 Water for analytical laboratory use.Specification and test methods
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 6150.2-2022 history
2022GB/T 6150.2-2022 Methods for chemical analysis of tungsten concentrates—Part 2: Determination of tin content—Potassium iodate titrimetry and inductively coupled plasma atomic emission spectrometry
2008GB/T 6150.2-2008 Methods for chemical analysis of tungsten concentrates.Determination of tin content.The potassium iodate volumetry and hydrogenate atomic absorption spectrometry
1985GB/T 6150.2-1985 Methods for chemical analysis of tungsten concentrates--The potassium iodate volumetric method for the determination of tin content